» Articles » PMID: 26925620

The Brucella Melitensis M5-90 Phosphoglucomutase (PGM) Mutant is Attenuated and Confers Protection Against Wild-type Challenge in BALB/c Mice

Overview
Publisher Springer
Date 2016 Mar 2
PMID 26925620
Citations 11
Authors
Affiliations
Soon will be listed here.
Abstract

Brucellae are Gram-negative intracellular bacterial pathogens that infect humans and animals, bringing great economic burdens to developing countries. Live attenuated Brucella vaccines (strain M5-90 or others) are the most efficient means for prevention and control of animal brucellosis. However, these vaccines have several drawbacks, including residual virulence in animals, and difficulties in differentiating natural infection from vaccine immunization, which limit their application. A vaccine that can differentiate infection from immunization will have extensive applications. A Brucella melitensis (B. melitensis) strain M5-90 pgm mutant (M5-90Δpgm) was constructed to overcome these drawbacks. M5-90Δpgm showed significantly reduced survival in embryonic trophoblast cells and in mice, and induced high protective immunity in BALB/c mice. Moreover, M5-90Δpgm elicited an anti-Brucella-specific immunoglobulin G response and induced the secretion of gamma interferon (IFN-γ) and interleukin-2 (IL-2). In addition, M5-90Δpgm induced the secretion of IFN-γ in immunized sheep. Serum samples from sheep inoculated with M5-90Δpgm were negative by the Rose Bengal Plate Test (RBPT) and Standard Tube Agglutination Test (STAT). Furthermore, the PGM antigen allowed serological differentiation between infected and vaccinated animals. These results suggest that M5-90Δpgm is an ideal live attenuated vaccine candidate against B. melitensis 16 M and deserves further evaluation for vaccine development.

Citing Articles

Characterization of the and phosphoglucomutases (Pgm2s): a potential target for therapy.

Kottom T, Carmona E, Limper A Antimicrob Agents Chemother. 2024; 68(3):e0075623.

PMID: 38259086 PMC: 10916394. DOI: 10.1128/aac.00756-23.


Inflammatory Mechanism of Infection in Placental Trophoblast Cells.

Xiao Y, Li M, Guo X, Zeng H, Shuai X, Guo J Int J Mol Sci. 2022; 23(21).

PMID: 36362199 PMC: 9657658. DOI: 10.3390/ijms232113417.


Evaluation of Brucellosis Vaccines: A Comprehensive Review.

Heidary M, Dashtbin S, Ghanavati R, Mahdizade Ari M, Bostanghadiri N, Darbandi A Front Vet Sci. 2022; 9:925773.

PMID: 35923818 PMC: 9339783. DOI: 10.3389/fvets.2022.925773.


Glucose-1,6-Bisphosphate, a Key Metabolic Regulator, Is Synthesized by a Distinct Family of α-Phosphohexomutases Widely Distributed in Prokaryotes.

Neumann N, Friz S, Forchhammer K mBio. 2022; 13(4):e0146922.

PMID: 35856562 PMC: 9426568. DOI: 10.1128/mbio.01469-22.


-Induced Downregulation of lncRNA Gm28309 Triggers Macrophages Inflammatory Response Through the miR-3068-5p/NF-κB Pathway.

Deng X, Guo J, Sun Z, Liu L, Zhao T, Li J Front Immunol. 2021; 11:581517.

PMID: 33414782 PMC: 7784117. DOI: 10.3389/fimmu.2020.581517.


References
1.
Wang Y, Bai Y, Qu Q, Xu J, Chen Y, Zhong Z . The 16MΔvjbR as an ideal live attenuated vaccine candidate for differentiation between Brucella vaccination and infection. Vet Microbiol. 2011; 151(3-4):354-62. DOI: 10.1016/j.vetmic.2011.03.031. View

2.
Pei J, Ficht T . Brucella abortus rough mutants are cytopathic for macrophages in culture. Infect Immun. 2003; 72(1):440-50. PMC: 343953. DOI: 10.1128/IAI.72.1.440-450.2004. View

3.
Morgan W . The serological diagnosis of bovine brucellosis. Vet Rec. 1967; 80(21):612-20. DOI: 10.1136/vr.80.21.612. View

4.
Schurig G, Sriranganathan N, Corbel M . Brucellosis vaccines: past, present and future. Vet Microbiol. 2002; 90(1-4):479-96. DOI: 10.1016/s0378-1135(02)00255-9. View

5.
Moriyon I, Grillo M, Monreal D, Gonzalez D, Marin C, Lopez-Goni I . Rough vaccines in animal brucellosis: structural and genetic basis and present status. Vet Res. 2004; 35(1):1-38. DOI: 10.1051/vetres:2003037. View